Simulation Practice and Theory最新文献_第8页

Dynamic analysis of pneumatic actuators 气动执行器的动力学分析

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00012-9

M. Sorli , L. Gastaldi , E. Codina , S. de las Heras

引用次数: 51

Bond graph modeling from an object oriented modeling point of view 从面向对象建模的角度进行键合图建模

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00027-0

W. Borutzky

{"title":"Bond graph modeling from an object oriented modeling point of view","authors":"W. Borutzky","doi":"10.1016/S0928-4869(99)00027-0","DOIUrl":"10.1016/S0928-4869(99)00027-0","url":null,"abstract":"<div><p>Along with an ever increasing model complexity, a so-called <em>object oriented</em> approach to physical systems modeling has become more and more popular throughout the last few years. Frequently used keywords are <em>multi-domain modeling</em>, <em>model reuse</em>, and <em>non-causal equations</em>. On the other hand the physical systems modeling methodology based on bond graphs has been in use worldwide since Paynter devised bond graphs more than 35 years ago. It seems that due to different roots and a different terminology, aspects of one of the two approaches are not fully appreciated by those who adhere to the other modeling paradigm. By relating features of object-oriented modeling (OOM) to corresponding ones of the older bond graph methodology, it is pointed out what both modeling approaches have in common and what is different. As a working modeling language, <em>Modelica</em> is used since it seems that this object oriented modeling language is going to receive an increasing attention as a neutral exchange format between proprietary modeling tools. As an application example that combines the electrical, the hydraulic and the mechanical energy domain in a single system, a hydraulic drive with a controlled displacement pump is considered.</p></div>","PeriodicalId":101162,"journal":{"name":"Simulation Practice and Theory","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0928-4869(99)00027-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88458539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 45

Pressure regulator valve by Bondgraph Bondgraph压力调节阀

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00024-5

Katsuya Suzuki , Ikuo Nakamura , J.U Thoma

引用次数: 12

20-sim software for hierarchical bond-graph/block-diagram models 用于分层键图/方框图模型的20 sim软件

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00018-X

Jan F Broenink

引用次数: 77

On state-event constructs in physical system dynamics modeling 物理系统动力学建模中的状态-事件构造

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00017-8

Peter C. Breedveld

引用次数: 6

Modelling of basic induction motors and source loading in rotor–motor systems with regenerative force field 具有再生力场的转子-电机系统中基本感应电机和源加载的建模

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00019-1

A. Mukherjee , R. Karmakar , A.K. Samantaray

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引用次数: 40

A bond graph model of chemo-mechanical transduction in the mammalian left ventricle 哺乳动物左心室化学-机械转导的键合图模型

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00023-3

Jacques LeFèvre, Laurent Lefèvre, Bernadette Couteiro

{"title":"A bond graph model of chemo-mechanical transduction in the mammalian left ventricle","authors":"Jacques LeFèvre, Laurent Lefèvre, Bernadette Couteiro","doi":"10.1016/S0928-4869(99)00023-3","DOIUrl":"10.1016/S0928-4869(99)00023-3","url":null,"abstract":"<div><p>We present a new lumped model of the pump behaviour of the mammalian left ventricle based on simple but physiologically plausible sub-models of chemo-mechanical energy transduction in muscle, mechano-hydraulic energy transduction in the ventricular wall and hemodynamical coupling of the ventricle and its arterial load. The model builds upon the foundation of classical analog ventricular models (dynamic compliance and visco-elastic models). However, we show that these classical models are not coherent from an energy viewpoint. To insure this coherency, we introduce explicit cross-bridge mechanisms linked to the mechano-hydraulical part of the model by a two-port capacitive (2PC) transducer representing chemo-mechanical coupling. We show that this 2PC is thermodynamically plausible and, when coupled to dissipative models of chemical energy generation and transfer, provides a novel and consistent characterisation of cardiac energetics at the global pump level. Finally, we briefly discuss some generalisations using nonlinear elements described by functional equations to represent muscle memory and sur-activation.</p><p>It is a well-known fact that languages shape perception. Of all the lumped modelling languages, the bond graph (BG) method is the only one to use the notion of a 2PC as a primitive modelling concept. Our hypothesis (mental model) is thus directly inspired by the fact that we use the BG language. Our claim is thus that our work demonstrates very clearly the heuristic and descriptive power of BGs in shaping new ideas about multi-energy and nonlinear physiological applications.</p></div>","PeriodicalId":101162,"journal":{"name":"Simulation Practice and Theory","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0928-4869(99)00023-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75364887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

A classification of modelling languages for differential-algebraic equations 微分代数方程建模语言的分类

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00022-1

Francis Lorenz

引用次数: 1

Bondgraphs for modeling and simulation 用于建模和仿真的键合图

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00028-2

Jean U Thoma, H Jürgen Halin

引用次数: 3

Dimensioning problems in system design using bicausal bond graphs 双例键合图在系统设计中的量纲问题

Simulation Practice and Theory Pub Date : 1999-12-15 DOI: 10.1016/S0928-4869(99)00013-0

R.F Ngwompo, S Scavarda

引用次数: 30